FILE - In this Friday, Nov. 10, 2006 file photo, Iraqi volunteers bury bodies in the Shiite holy city of Najaf, 160 kilometers (100 miles) south of Baghdad, Iraq as 176 bodies of victims of recent sectarian violence were brought from Baghdad to Najaf for the funeral. More than a year after the U.S. military left Iraq, the country is reeling from its most sustained violence since 2008. Over the last two months more than 1,200 people have been killed, raising fears the country is sliding back into chaos. (AP Photo/Alaa al-Marjani, File)